Vacuum-insulated bottle



Se t. 30. I924.

l+l.'L. o. BRficKNER VACUUM msuwrzn BOTTLE Filed Nov. 24

Patented Sept. 30, 1924.

HEINRICH LOUIS OTTO BRT 'CKNER, OF GRENZHAMMER, NEAR ILMENAU, GERMANY.

VACUUM-INSULATED BOTTLE.

Application filed November 24, 193. Serial No. 676,785.

To all when: it may concern:

Be it known that l. HEINRICH Lorne Orro Bntionxmz. a citizen of Deutschcs Reich. residing at Grenzhammer, near Ilmenan, ThuringiaQ Germany, have invented certain new and useful Improvements in Vacuum-Insulated Bottles. of which the following is a specification.

The vacuum-insulated bottle according to the present invention is characterized in that a glass bottle is freely suspended in the envelope and that the glass bottle has outwardly directed projections which bear upon inwardly directed indentations of the sheet metal envelope. These outwardly directed projections of the glass bottle could be for instance blown out as a. ring from the insulating body when the same is being manufactured. The indentations in the sheet metal envelope could also be ringshaped but it would be quite sufficient if only one of the elements. for instance the glass bottle, has a ring-shaped projection,

the other part, in this case the envelope,

having only some inwardly projecting indentations designed to support the ringshaped projection of the glass bottle. The outwardly projecting rib of the glass bottle may however be of any other shape but ring-shaped so that these projections serve as abutments for aring of card-board, felt, glass or metal pushed over the bottle from below.

This arrangement has for its purpose to freely suspend the glass bottle in the envelope. Hitherto an elastic support of cork or elastic lamellae had to be placed under the bottle to support the same in the envelope and the bottle had been further elastically supported in the envelope in lateral direction by means of insertions of undulated card-board. These auxiliary means fulfill however their object only incompletely as it frequently happens that even by the cork or elastic lamellae the bottom of the glass bottle was broken as it is comparatively thin, or the hollow evacuating stud was broken ofl'. which is necessary to produce a vacuum in the interval between the two bottles. All these inconveniences are avoided by the special suspension according to the present invention. The weight of the bottle is intercepted by the ribs on the bottle and in the envelope.

The invention will be best understood from a consideration of the following detailed description taken in connection with the accompanying drawing formin a part of this specification, with the un erstan ing. that while on the drawin one embodiment of the invention is disc osed, the invention-is not confined to any strict conformity with the showing of the drawing, but may be embodied in any manner which does not make a material departure from the salient features of the invention.

In the drawing:

Fig. 1 shows the bottle in elevation, the envelope being partly broken awa Fig. 2 is a horizontal section on ine A-B of Fig. 1. v

In the form of construction shown the glass bottle 1 has an outwardly projecting ring Q'Aobtained by blowing and the envelope 3 has, below the thread 4 for the cap 5, an annular groove 6 so that the rib 2 of the bottle is sup-ported by the inner rib produced by the groove 6 of the envelope 3.- The bottle l-is secured in its position in the envelope 3 by the screwed on cap'5 as the upper set-off end of the screw cap 5 bears in the well known manner upon the upper part of the glass bottle 1. For this reason it is no longer necessary to insert a. layer of card-board between the envelope and the glass bottle The glass bottle 1 is freely suspended in the envelope 3 being nevertheless immobilized in the same. The glass bottle when being heated can freely expand so that it is not exposed to any pressure from below. It is no longer necessary to make the bottom of the glass bottle specially strong as the bottle is freely suspended and its bottom not exposed to any ressure. The evacuation socket 7 of the bott e is also not submitted to any strain. Obviously the continuous ring form of the projection 2 on the glass bottle and the inward continuous projection of the envelope 3 shown is not essentiaLbut it is sufiicient simply if the bottle 1 and the envelope 3 be suitably formed with cooperating laterally projectinc-parts or portions adapted to engage to hold the bottle 1 suspended in, and spaced from the bottom of, the envelope 3 regardless of any rotation of the bottle 2 in said envelope 3.

That I claim is 1. A vacuum-insulated bottle comprising in combination. a glass bottle, and an envelopo. said bottle and envelope being provided with cooperating oppositely presented laterally projecting arts insuperon in e positions of the bottle m said envelope as'assembled and maintain- .ing said bottle in suspended relstion'to, and spaced from the upper face of the bottom of, said envelope.

2. A vacuum-insulwted bottle eolnprisi in combination, a. less bottle, a, rin -she projection on sai glass bottle, an an envelope an annulsrindentation designed to serve as support for said projection of the bottle so t at the bottle is free! suspended m the envelope. i l

3. In a vacuum insulated bottle, the oombination of a. glassjbottle and an envelope comprising a body portion and a, oepportion adapted to be suitably associated together over less bottle, said gins bottle and envelope dy being formed with oppositely presented laterally pgrjectinfieooperating parts enpaging int assem led reellation of said g as V 0 In testimony whereof I have signed my name to this specificatidn at Leipzig, Germany, this 29th day of October, 1923.

ummncn LOUIS one antenna.

bottle and said eny and maintaml gfi said glass bott e in suspended spaced tion insaid envelope, and said cap bearing upon the 

